I have an 04 F-250 Super Duty 6.0 it has been completely bulletproofed with egr delete and everything and has just has all new injectors put in on 03/14/2018, Before i had them put in, It would start up quick in the mornings now it takes close to 30 sec maybe even a min sometimes to crank and it can be 30 degrees outside or 75 degrees it don't matter. It runs and drives absolutely perfect and you when get it cranked you can immediately turn it off and it will crank right back up with no problems and it will crank perfect until the next morning when i try to crank it again. The starter is strong on it so i dont think thats the problem. Anyone else have any ideas?

 

What’s the HPOP pressure cranking it cold? Or after a cold soak.
Being the issue started with the injector replacements, I’d check the HP oil pressure minimums for a start are met, at least to prove it out. Might unplug the ICP and see if the start improves...